I love his work. I haven't read his Deadman or Batman but I enjoyed the parts of Green Lantern/Green Arrow I read. I liked his art so much that I decided to try and pick up the entire run of Continuity Comics, which contrary to what was stated, was in the late 80s/early 90s not the 70s as far as I know. I liked that the house art style resembled Neal's art. The stories themselves were a bit nonsensical and sometimes cringe.
Last I saw of Neal Adams was on some YouTube video where he says the Earth is generating new matter from the inside and expanding in size and therefore overpopulation will never be an issue. Seemed a little bonkers to me.